General dynamic equation and dynamical characteristics of viscoelastic Timoshenko beams

Autor:	Xiao Can-zhang, Ji Yi-zhou, Chang Bao-ping
Rok vydání:	1990
Předmět:	Timoshenko beam theory Partial differential equation Differential equation Applied Mathematics Mechanical Engineering Mechanics Viscoelasticity Physics::Fluid Dynamics Vibration Viscosity Classical mechanics Mechanics of Materials Standard linear solid model Beam (structure) Mathematics
Zdroj:	Applied Mathematics and Mechanics. 11:177-184
ISSN:	1573-2754 0253-4827
DOI:	10.1007/bf02014542
Popis:	In this paper, a governing differential equation of viscoelastic Timoshenko beam including both extension and shear viscosity is developed in the time domain by direct method. To measure the complex moduli and three parameters of standard linear solid, the forced vibration technique of beam is successfully used for PCL and PMMA specimens. The dynamical characteristics of viscoelastic Timoshenko beams, especially the damping properties, are derived from a considerable number of numerical computations. The analyses show that the viscosity of materials has great influence on dynamical characteristics of structures, especially on damping, and the standard linear solid model is the better one for describing the dynamic behavior of high viscous materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b15251b515183310b943f53762c042a3 https://doi.org/10.1007/bf02014542 Zobrazit plný text záznamu Full text from SpringerLink